Dr. Harris Ronald Fisk, MD, PhD
- Part D claims, 2023
- 13
- Industry payments
- $253
- Affiliated sites
- 1
- State licenses
- 3
- Year NPI issued
- 2006
- Practice address
- 8631 W 3rd St, Los Angeles, CA 90048-5901
- Practice phone
- Call (310) 657-0942
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
H. Ronald Fisk, M.D., Ph.D., A Medical Corporation
Physician office · Los Angeles, California
Find Dr. Fisk's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Harris Ronald Fisk is a neurologist in Los Angeles, California
Dr. Fisk practices at H. Ronald Fisk, M.D., Ph.D., A Medical Corporation in Los Angeles, California.
Dr. Fisk's NPI, 1386669190, was assigned on July 13, 2006. Dr. Fisk graduated from Pritzker School of Medicine in 1967. Dr. Fisk's California license number on file is G20300.
- NPI
- 1386669190NPI Registry (opens in a new tab)
- NPI enumeration date
- July 13, 2006
- NPI status
- Active
- Practice phone
- (310) 657-0942
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1967
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Harris Ronald Fisk practices at H. Ronald Fisk, M.D., Ph.D., A Medical Corporation in Los Angeles, California
Dr. Fisk's primary practice is H. Ronald Fisk, M.D., Ph.D., A Medical Corporation, at 8631 W 3rd St, Los Angeles, CA 90048-5901. The practice phone is (310) 657-0942.
- H. Ronald Fisk, M.D., Ph.D., A Medical Corporation8631 W 3rd St, Los Angeles, CA 90048-5901Phone(310) 657-0942
Source: Dmand AI Affiliation Data
Dr. Harris Ronald Fisk is affiliated with 1 site of care
Dr. Fisk's primary practice is H. Ronald Fisk, M.D., Ph.D., A Medical Corporation in Los Angeles, California.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Harris Ronald Fisk's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Fisk practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| H. Ronald Fisk, M.D., Ph.D., A Medical Corporation | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Harris Ronald Fisk is one of 2,207 neurologists in California
Neurology is Dr. Fisk's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Fisk is board certified in neurology by the American Board of Psychiatry and Neurology. Dmand AI has Dr. Fisk's licenses on file in 3 states: California, Washington and Maryland.
Specialties and state licenses
- Neurology, CaliforniaPrimary
- Washington license
- Maryland license
Neurologists near Dr. Fisk
Counts of neurologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Harris Ronald Fisk's patients have a median age of 82
Across all payers, Dmand AI patient panel data puts Dr. Fisk's median patient age at 82, with 0% women.
Dr. Fisk's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 82
Patient panel by sex, all payers
- Women0%
- Men100%
Source: Dmand AI Patient Panel Data
Dr. Harris Ronald Fisk wrote 13 Medicare Part D claims in 2023
In 2023, Dr. Fisk wrote 13 Medicare Part D claims. They cover 1 drug, with $79,145 in total drug cost. In 2022, CMS named 13 claims across 1 drug.
Dr. Fisk's most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 132023: 13No change
Drugs named by CMS: 1 in 2023, 1 in 2022.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Harris Ronald Fisk received $253 in industry payments from 2016 to 2021
CMS Open Payments shows 12 general payments to Dr. Fisk from 6 drug and device companies from 2016 to 2021. Food and beverage make up the largest share, 100% of the total. INSYS Therapeutics Inc paid the most, $88.
General payments to Dr. Fisk by program year, 2016 to 2021
Companies that paid Dr. Fisk the most, 2016 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Harris Ronald Fisk graduated from Pritzker School of Medicine
Dr. Fisk graduated from Pritzker School of Medicine in 1967.
- Medical school
- Board certified in neurology
Source: Dmand AI Professional Profile Data
Sources for Dr. Harris Ronald Fisk's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Harris Ronald Fisk
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Harris Ronald Fisk's NPI number?
Dr. Harris Ronald Fisk's NPI number is 1386669190. It was assigned on July 13, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Harris Ronald Fisk?
Dr. Harris Ronald Fisk is a neurologist in Los Angeles, California. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).
Where does Dr. Harris Ronald Fisk practice?
Dr. Fisk practices at 8631 W 3rd St, Los Angeles, CA 90048-5901. Dr. Fisk's primary practice is H. Ronald Fisk, M.D., Ph.D., A Medical Corporation in Los Angeles, California.
What is Dr. Harris Ronald Fisk's office phone number?
The practice phone on file for Dr. Fisk is (310) 657-0942.
What is Dr. Harris Ronald Fisk's medical license number?
Dr. Fisk's California license number on file is G20300, one of the licenses on file in 3 states.
Which states has Dr. Harris Ronald Fisk been licensed in?
Dmand AI has state licenses on file for Dr. Fisk in California (1971 to 2025), Washington and Maryland (1971 to 1986).
Is Dr. Harris Ronald Fisk board certified?
Yes. Dr. Fisk is board certified in neurology by the American Board of Psychiatry and Neurology.
Where did Dr. Harris Ronald Fisk go to medical school?
Dr. Fisk graduated from Pritzker School of Medicine in 1967.
What drugs does Dr. Harris Ronald Fisk prescribe most?
In 2023 Medicare Part D data, Dr. Fisk's most prescribed drugs by claims were Copaxone.
Has Dr. Harris Ronald Fisk received payments from drug or device companies?
CMS Open Payments shows $253 in general payments to Dr. Fisk from 6 companies from 2016 to 2021. The largest total came from INSYS Therapeutics Inc.
How long has Dr. Harris Ronald Fisk been practicing?
Dr. Fisk graduated from medical school in 1967, 59 years ago.
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